What is the surface area of a sphere with a radius of 30 m?

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

At school 460 of the students walk to school the number of students who take public transit is 20% of the number of students who walk. how many students take public transit

Ineed can someone simplify this? ! x + 4x + 6x